2228777544 has 48 divisors (see below), whose sum is σ = 6481652400. Its totient is φ = 636793248.

The previous prime is 2228777497. The next prime is 2228777567. The reversal of 2228777544 is 4457778222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2228777493 and 2228777502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946434 + ... + 948785.

It is an arithmetic number, because the mean of its divisors is an integer number (135034425).

Almost surely, 2^2228777544 is an apocalyptic number.

2228777544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2228777544 is an abundant number, since it is smaller than the sum of its proper divisors (4252874856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2228777544 is a wasteful number, since it uses less digits than its factorization.

2228777544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895242 (or 1895231 counting only the distinct ones).

The product of its digits is 1756160, while the sum is 48.

The square root of 2228777544 is about 47209.9305655071. The cubic root of 2228777544 is about 1306.2377815787.

The spelling of 2228777544 in words is "two billion, two hundred twenty-eight million, seven hundred seventy-seven thousand, five hundred forty-four".